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Interlaken

$381+ Cheap flights from Seattle (SEA) to Interlaken, Switzerland

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/17. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ZRH
Mar 8 — Mar 151
Sat 3/8
Sat 3/15
1 adult, Economy
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The best prices from Seattle/Tacoma Intl to Interlaken are usually found in November or January, booked 8 days in advance, depart on a Saturday or Thursday and return on a Sunday

Cheap flight deals from Seattle to Interlaken

Keep the following information in mind while searching for Seattle to Interlaken flight deals. Data was last updated March 3, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$492
(Booking.com)

One-way from

$381
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$598
Provider with most accurate pricing for Seattle/Tacoma Intl-Zurich flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Zurich flights.
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From Seattle/Tacoma Intl to Interlaken
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One-way flight from Seattle/Tacoma Intl to Interlaken
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Highest demand for flights based on searches. 19% potential increase in price ($168 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($28 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find flight deals from Seattle to Interlaken

Cheapest flights from Seattle to Interlaken
Explore the most affordable flight options available from Seattle to Interlaken. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 3, 2025.

This Booking.com deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/23:05 pmSEA - ZRH
2 stops22h 40mMultiple Airlines
Wed 4/91:25 pmZRH - SEA
1 stop17h 16mMultiple Airlines
Deal found 3/2$492
This Gotogate deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/77:00 pmSEA - ZRH
1 stop33h 05mIcelandair
Tue 10/142:00 pmZRH - SEA
1 stop15h 40mIcelandair
Deal found 3/1$496
This Booking.com deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/25:45 amSEA - ZRH
2 stops19h 35mAir Canada
Wed 4/91:25 pmZRH - SEA
2 stops33h 58mAir Canada
Deal found 3/2$497
This Kiwi.com deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/13:24 pmSEA - ZRH
1 stop15h 16mSWISS
Tue 4/81:15 pmZRH - SEA
1 stop17h 00mSWISS
Deal found 3/2$514
This United Airlines deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/18:15 amSEA - ZRH
1 stop14h 50mUnited Airlines
Tue 4/81:25 pmZRH - SEA
2 stops35h 33mUnited Airlines
Deal found 3/3$522
This Flightnetwork deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/155:05 pmSEA - ZRH
1 stop13h 55mCondor
Tue 4/228:05 amZRH - SEA
1 stop16h 00mCondor
Deal found 3/2$537
This Cheapflightsfares deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/16:50 pmSEA - ZRH
1 stop18h 10mBritish Airways
Mon 12/89:05 pmZRH - SEA
1 stop23h 15mBritish Airways
Deal found 3/1$544
This American Airlines deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/13:26 pmSEA - ZRH
2 stops17h 49mAmerican Airlines
Mon 12/84:25 pmZRH - SEA
1 stop27h 55mAmerican Airlines
Deal found 3/2$555
This Delta deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/187:15 amSEA - ZRH
1 stop19h 15mDelta
Mon 3/249:00 amZRH - SEA
1 stop35h 40mDelta
Deal found 3/3$587
This KLM deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/306:10 pmSEA - ZRH
1 stop15h 30mKLM
Mon 5/197:25 pmZRH - SEA
1 stop25h 15mKLM
Deal found 3/2$663
This Finnair deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/115:40 pmSEA - ZRH
1 stop15h 40mFinnair
Sat 5/2410:50 amZRH - SEA
1 stop14h 10mFinnair
Deal found 3/3$684
This Cheapflightsfares deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1910:00 amSEA - ZRH
2 stops20h 45mLufthansa
Sat 10/258:00 pmZRH - SEA
2 stops27h 20mLufthansa
Deal found 3/3$725

Find flights from Seattle to Interlaken within your budget

Customize your flight search to find flights from Seattle to Interlaken that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 3, 2025.

Fly from

Seattle

Fly to

Interlaken

Route

Depart

Return

Price

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Wed 4/2

3:05 pm-10:45 pm

2 stops22h 40m

Zurich

Wed 4/9

1:25 pm-9:41 pm

1 stop17h 16m

$492

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Wed 4/2

5:45 am-10:20 am

2 stops19h 35m

Zurich

Wed 4/9

1:25 pm-2:23 pm

2 stops33h 58m

$497

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Mon 4/14

3:45 pm-1:05 pm

1 stop12h 20m

Zurich

Sun 4/27

2:00 pm-8:40 pm

1 stop15h 40m

$505

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Tue 4/1

3:24 pm-3:40 pm

1 stop15h 16m

Zurich

Tue 4/8

1:15 pm-9:15 pm

1 stop17h 00m

$514

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Tue 4/1

8:15 am-8:05 am

1 stop14h 50m

Zurich

Tue 4/8

1:25 pm-3:58 pm

2 stops35h 33m

$522

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Tue 4/15

5:05 pm-4:00 pm

1 stop13h 55m

Zurich

Tue 4/22

8:05 am-3:05 pm

1 stop16h 00m

$537

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Mon 3/31

2:05 pm-6:00 pm

2 stops18h 55m

Zurich

Mon 4/7

9:45 pm-11:10 am

1 stop22h 25m

$556

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Tue 3/18

7:15 am-10:30 am

1 stop19h 15m

Zurich

Wed 3/26

11:50 am-12:40 pm

1 stop32h 50m

$587

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Wed 4/30

5:22 am-8:50 am

2 stops18h 28m

Zurich

Wed 5/7

11:45 am-8:19 pm

2 stops17h 34m

$640

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Wed 4/30

6:10 pm-6:40 pm

1 stop15h 30m

Zurich

Mon 5/19

7:25 pm-11:40 am

1 stop25h 15m

$663

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/2

Showing 1-10 of 23 results
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Best time to book a flight from Seattle to Interlaken

Have a flexible travel schedule? Discover the best time to fly to Interlaken from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Seattle to Interlaken

Get recent, data-driven insights about flights from Seattle to Interlaken including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Seattle to Interlaken?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Interlaken. Price data was last updated on February 28, 2025.

To ensure you get the cheapest price possible for a flight from Seattle to Interlaken, you should look to book at least 8 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Seattle to Interlaken?

Currently, November is the cheapest month in which you can book a flight from Seattle to Interlaken (average of $637). Flying from Seattle to Interlaken in June is currently the most expensive (average of $1,296). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEA to IN9?

Find hourly flight availability from Seattle to Interlaken. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 3, 2025.

When flying from Seattle to Interlaken, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What is the cheapest day to fly from Seattle to Interlaken?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Interlaken. Price data was last updated on April 14, 2024.

Travelers seeking maximum savings on their Seattle to Interlaken flight should consider departing on Monday evenings when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Interlaken by month

Plan your trip to Interlaken by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Interlaken ranges from 2.5 - 5.0 inches per month. June is typically the wettest month, when rainfall can reach 5.0 in. January is typically the driest time to visit Interlaken when rainfall is around 2.5 in.

Temperature in Interlaken by month

Plan your trip to Interlaken by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Interlaken, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing Interlaken

Get insights into the airlines that provide service to Interlaken. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Interlaken. Reviews last updated March 3, 2025.
Peruse reviews from past customers who have flown with Delta, KLM and Finnair from Seattle to Interlaken to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,070 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Comfort

8.0

Food

7.3

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,070 reviews
Delta
8.0
Very good
8,070 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Comfort

8.0

Food

7.3

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,322 reviews
Delta
8.0
Very good
8,070 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Comfort

8.0

Food

7.3

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair
7.6
Good
1,271 reviews
Delta
8.0
Very good
8,070 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Comfort

8.0

Food

7.3

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

SWISS
7.5
Good
1,562 reviews
Delta
8.0
Very good
8,070 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Comfort

8.0

Food

7.3

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
8,679 reviews
Delta
8.0
Very good
8,070 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Comfort

8.0

Food

7.3

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Interlaken. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Seattle to Interlaken?

    Located just 11.4 mi from the city center, Seattle/Tacoma Intl is the airport most travelers will use when flying to Interlaken from Seattle. Booking flights from Seattle/Tacoma Intl (SEA) to Interlaken should be relatively easy as there are 0 daily outbound flights to Interlaken from 13 different airlines.

  • What are the cheapest airlines to fly from Seattle to Interlaken one-way?

    $389 is the cheapest one-way deal found within the past few days, from SWISS. You may also be able to find cheap deals on Delta and United Airlines, with prices starting from $408 and $428, respectively.

  • What are the cheapest flights from Seattle to Interlaken?

    On average you can expect to pay $686 for a flight from Seattle to Interlaken. The cheapest flight overall is $410 while the most popular route, (Seattle/Tacoma Intl - Zurich) is currently priced at $492.

  • Can I find deals for flights from Seattle to Interlaken that include hotel bookings?

    Yes. In addition to deals on Seattle to Interlaken flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Interlaken?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Interlaken.

  • Can I find deals for business class flights from Seattle to Interlaken?

    Yes. Cheapflights offers flight deals from Seattle to Interlaken by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Interlaken?

    Currently, November is the cheapest month in which you can book a flight from Seattle to Interlaken (average of $637). Flying from Seattle to Interlaken in June is currently the most expensive (average of $1,296). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 10 airlines flying from Seattle to Interlaken

Discover the top 10 airlines that operate flights from Seattle to Interlaken. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$296Average$705FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$406Average$674FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$443Average$645FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$486Average$611FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$492Average$773FlexibilityNo cancel feeOn-time76%
Air FranceCheapest$502Average$884FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$513Average$716FlexibilityNo cancel feeOn-time69%
DeltaCheapest$524Average$834FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$555Average$844FlexibilityNo cancel feeOn-time75%
FinnairCheapest$559Average$688FlexibilityNo cancel feeOn-time76%
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